<clickhouse>
    <zookeeper>
        <node index="1">
            <host>node1</host>
            <port>9181</port>
        </node>
        <node index="2">
            <host>node2</host>
            <port>9181</port>
        </node>
        <node index="3">
            <host>node3</host>
            <port>9181</port>
        </node>
    </zookeeper>
</clickhouse>
